Make from food grade silicone, the sealing rings maintains elasticity through frequent dishwasher cycles while leaks for cooking Suit for daily meal preparation, preserving ingredient freshness during slow cooking, and hassles frees post use cleaning routines This silicone sealing rings ensures sealed stacking tray lid with heat and wear resistance Its ensures a perfectly fit every time, offering peace of minds through toxin frees materials and blocking efficiency Ideal for mixing pots owners seeking practical accessories to maintain kitchen hygienes and appliance longevity